Error: Could not instantiate mail function with $kirby->email

The CMS Questions
15

Hi all!

It seems, that at least the error cause is found: after talking to the df.eu support, the reason seems to be, that Domainfactory changed their general server configuration and now they are forcing a ReturnPath with the parameter -f within the sendmail_path in the php.ini (which I cannot access). Kirby seems to force a ReturnPatch with phpmailer by its´ own, which causes an error. The suggested solution should be to add the parameter 0 to phpmailer.

 $mail->setFrom('absender@domain.tld', 'Mailer' ,0);

But I absolutely do not know where to integrate that in the system and I found no documentation. Alternatively, I tried to integrate this within my script of the control contact.php, but it does not work:

$kirby->email([
    'beforeSend' => function ($mailer) {
        $mailer->setFrom('info@domain.de', esc($data['name']) ,0);
        return $mailer;
    }
]);

I am not sure, where to integrate that correctly, here is my complete code, whichs throws the error " Undefined variable: data". I think after 2 days staring at this piece of code, I am getting blind, a coffe and a cake for the one who solves this:

<?php
return function($kirby, $pages, $page) {

    $alert = null;

    if($kirby->request()->is('POST') && get('submit')) {

        // check the honeypot
        if(empty(get('website')) === false) {
            go($page->url());
            exit;
        }

        $data = [
            'name'  => get('name'),
            'email' => get('email'),
            'text'  => get('text'),
			'optin' => get('optin')
        ];

        $rules = [
            'name'  => ['required', 'minLength' => 1],
            'email' => ['required', 'email'],
            'text'  => ['required', 'minLength' => 1, 'maxLength' => 3000],
			'optin' => array('required')
        ];

        $messages = [
            'name'  => 'Please enter a valid name',
            'email' => 'Please enter a valid email address',
            'text'  => 'Please enter a text between 3 and 3000 characters',
			'optin'  => 'Bitte markieren Sie die Checkbox, um uns zu erlauben Sie zu kontaktieren.'
        ];

        // some of the data is invalid
        if($invalid = invalid($data, $rules, $messages)) {
            $alert = $invalid;

            // the data is fine, let's send the email
        } else {
            try {
                $kirby->email([
                    'beforeSend' => function ($mailer) {
                    $mailer->setFrom('info@domain.de', esc($data['name']) ,0);
                    return $mailer;
                    },
                    'template' => 'email',
                    'from'     => 'info@domain.de',
                    'replyTo'  => $data['email'],
                    'to'       => 'info@domain.de',
                    'subject'  => esc($data['name']) . ' hat Ihnen eine Nachricht über Ihr Kontaktformular geschickt',
                    'data'     => [
                        'text'   => esc($data['text']),
                        'sender' => esc($data['name']),
						'email' => esc($data['email'])						
                    ]
                ]);

            } catch (Exception $error) {
                if(option('debug')):
                    $alert['error'] = 'Ihre Nachricht konnte leider nicht verschickt werden <strong>' . $error->getMessage() . '</strong>';
                else:
                    $alert['error'] = 'Da ist leider etwas schiefgelaufen!';
                endif;
            }

            // no exception occurred, let's send a success message
            if (empty($alert) === true) {
                $success = 'Ihre Nachricht wurde erfolgreich versandt! Wir melden uns so schnell wie möglich bei Ihnen.';
                $data = [];
            }
        }
    }

    return [
        'alert'   => $alert,
        'data'    => $data ?? false,
        'success' => $success ?? false
    ];
};

Thanks a million!!